Method for setting starting position of data channel in wireless communication system and device using method

Abstract

Provided are a method for setting a starting position in a time domain of a data channel in a wireless communication system and a device using the method thereof. The method comprises the steps of: receiving position information notifying the position at which data channels start in a plurality of subframes; receiving a control channel in a first downlink subframe; and receiving at least one data channel scheduled by the control channel in the plurality of the downlink subframes, wherein the position at which the data channel starts in the plurality of the downlink subframes is determined on the basis of the position information.

What is claimed is: 
     
       1. A method for determining a starting position of a data channel in a time domain in a wireless communication system, the method performed by a user equipment (UE) and comprising:
 receiving position information; and 
 receiving a physical downlink shared channel (PDSCH) in a first subframe, 
 wherein when the PDSCH is scheduled by a physical downlink control channel (PDCCH) which is located in the first subframe, the UE determines a starting orthogonal frequency division multiplexing (OFDM) symbol to receive the PDSCH in the first subframe by a physical control format indication channel (PCFICH), and 
 wherein when the PDSCH is not scheduled by the PDCCH which is located in the first subframe, the UE determines a starting OFDM symbol to receive the PDSCH in the first subframe by the position information instead of the PCFICH. 
 
     
     
       2. The method of  claim 1 , wherein the position information is received by a higher layer signal. 
     
     
       3. The method of  claim 1 , wherein the position information is received through a radio resource control (RRC) message. 
     
     
       4. The method of  claim 1 , wherein when the PDSCH is scheduled by the PDCCH in the first subframe, the UE determines a starting OFDM symbol to receive the PDSCH in the first subframe by information received through the PCFICH. 
     
     
       5. The method of  claim 4 , wherein the information indicates a number of OFDM symbols used for the PDCCH. 
     
     
       6. The method of  claim 1 , wherein the position information is received in a second subframe before the first subframe. 
     
     
       7. A User Equipment (UE), the UE comprising:
 a Radio Frequency (RF) unit transmitting and receiving radio signals; and 
 a processor, connected to the RF unit, that: 
 controls the RF unit to receive position information; and 
 controls the RF unit to receive a physical downlink shared channel (PDSCH) in a first subframe, 
 wherein when the PDSCH is scheduled by a physical downlink control channel (PDCCH) which is located in the first subframe, the UE determines a starting orthogonal frequency division multiplexing (OFDM) symbol to receive the PDSCH in the first subframe by a physical control format indication channel (PCFICH), and 
 wherein when the PDSCH is not scheduled by the PDCCH which is located in the first subframe, the UE determines a starting OFDM symbol to receive the PDSCH in the first subframe by the position information instead of the PCFICH. 
 
     
     
       8. The UE of  claim 7 , wherein the position information is received by a higher layer signal. 
     
     
       9. The UE of  claim 7 , wherein the position information is received through a radio resource control (RRC) message. 
     
     
       10. The UE of  claim 7 , wherein when the PDSCH is scheduled by the PDCCH in the first subframe, the UE determines a starting OFDM symbol to receive the PDSCH in the first subframe by information received through the PCFICH. 
     
     
       11. The UE of  claim 10 , wherein the information indicates a number of OFDM symbols used for the PDCCH. 
     
     
       12. The UE of  claim 7 , wherein the position information is received in a second subframe before the first subframe.